67711-95-9 Decopperized electrolyte sludge (copper refining) EINECS 266-972-5 Electrolytic copper purification tank sludge Electrolytic copper refinery silver slimes Electrolytic copper refinery slimes Electrolytic tankhouse slimes (copper refining) Electrowinning cell sludge Slimes and Sludges, copper electrolytic Slimes from copper electrolyte cells Sludge from copper removal cells Tellurium slimes